Device for pivotally connecting the frame of a road roller with a supporting roll



Dec. 5, 1950 c. E. GlFFoRD DEVICE FOR PIVOTALLY CONNECTING THE FRAME 0F A ROAD ROLLER WITH A, SUPPORTING ROLL 2 Sheets-Sheet 1 Filed April 17, 1947 NN www S Q m nu www a q f w HTTDRNEY C. E. GIFFORD DEVICE FOR PIVOTALLY CONNECTING THE FRAME 0F Dec. 5, 1950 A ROAD ROLLER WITH A SUPPORTING ROLL 2 Sheets-Sheet 2 Filed April 17. 1947 INVENTOR. [LHV TDA/- ,l/Fraga Zy MW f7 7' TURA/EY Patented Dec. 5, 1950 DEVICE FOR PIVOTALLY lCONNEC'IIINTG" THE FRAME F A ROAD ROLLER WITH A SUP- PORTING ROLL Clayton E. Gifford, Marion, Ohio, assignor to The Huber Manufacturing Company, Marion, Ohio,

a corporation of Ohio Application April 17, 1947, Serial No. 742,000

This invention relates to a device for pivotally connecting the frame of a road roller with a supporting roll. It is customary to mountthe steering roll of a road roller for movement about a vertical axis with relation to the frame and for tilting movement about a fore and aft axis. Heretofore the fore and aft pivot pin has :been mounted either in plain bushings or on straight roller bearings. The heavy load and frequent shock on the pvot pin subject the pin and its v bearings to severe wear and no means are provided for taking up that wear. As a result ythe pivot pin or its bearings or both, when badly worn. must be replaced. Further, unless the several parts are manufactured to close tolerances there is apt to be an initial looseness in a pivot pin mounting of a strong durable construction and which can be manufactured and assembled at relatively low cost.

A further object of the invention is to provide such a mounting in which the roll yoke will be strongly reinforced against springing under heavy load.

Other objects of the invention may appear as the device is described in detail.

In the accompanying drawings Figure 1 is a side elevation of a road roller equipped with my invention; Figure 2 is a side elevation of the front end portion of the frame and its supporting roller, showing the connecting mechanism in section; Figure 3 is an enlarged sectional view of the pivot pin and its mounting; and Figure 4 is a front end elevation of the pivot pin mounting, partly broken away.

In these drawings I have illustrated a preferred embodiment of the invention, but it is to be understood that the device as a whole as well as the several parts thereof, may take various forms without departing from the spirit of the invention.

The ro-ll yoke is supported on the roll `and is connected with the frame by an upright spindle or king pin, both the yoke and the spindle are of a known construction. Rigidly connected with the lower end of the spindle and extending transversely thereto is a member which` constitutes a pivot pin. The ends of this pivot pin are 12 Claims. (Cl. 280-109) mounted respectively in bearings carried by bearing supporting members or carriers rigidly mounted on the respective sides of the yoke, these carriers being adjustable lengthwise off? the pivot pin to adjust the bearings and to take up any looseness in the pivotal connection. f

In the particular construction here shown the end portion 5 of the frame overhang's the roll 6 and is provided with a vertical bearing l in which is mounted the spindle or king pin 8. Rigidly secured to the lower end of the spindle, and in the present instance formed integral therewith, is a transverse member 9 which constitutes the fore and aft lpivot pin.' lThe yoke which supports the forward end of the frame on the roll 6 comprises a transverse member II) which extends lengthwise of the roll, andrdownwardly extending arms II which are connected with and supported on the roll at the axis thereof. The transverse member I0 of the yoke isg provided at its front and rear sides with upwardly extending members I2 which are preferably, but not necessarily, formed integral therewith. Each of these members is provided with a relatively large opening I3 in which is mounted a bejaring supporting member or carrier Il. EachA carrier is provided with a circumferential, radial flange I5 which overlaps the outer surface ofthe adjacent upright member I2 and is rigidly secured thereto by suitable attaching devices, such las screws I6. Each carrier I4 is also providedg with an inwardly extending annular ilange Il, which extends about the adjacent end of the pivot pin 9 and is spaced radially therefrom. Interposed between this annular flange and thef'end of the pivot pin is an anti-friction device whereby the pivot pin is rotatably supported on the carrier. This anti-friction device may be of any suitable character but preferably comprises a taper roller bearing I8, the outer race I! of which bears against the annular flange I1 and against the upright portion of the carrier Il. and the inner race 2li of which is mounted on the end of the spindle and bears against a shoulder 2| on the spindle. Each carrier I4 is adjustable lengthwise of the spindle and the inward movement of the carrier will adjust the bearing to take up any looseness therein, thus maintaining the bearing elements in snug bearing contact one with the other. This adjustment of the carriers may be effected in any suitable manner and in the present instance shims 22 are interposed between the radial flange I5 of each carrier and the outer surface of the corresponding upright member I2 of the yoke. Thus by removing one or carrier I4 and includes means, such as nuts 23;'

for rigidly connecting the saine with; said arriers in such a manner as M Ward movement of the carriers with relation -one to the other and to thereby pngvent1 any springing or distortion of uprightf'fenijersi of the yoke, due to heavy stresssfotlerwise;

It will be apparent, therefore, that the spindle 8, and therefore the end portion f the rame, is.

supported on the fore and aft pivot pin whihrqf A about the vertical aXis'f tates with the spindle the lanean@ which remis inenting move.,- 'nient oifcneflfoll"aluoV M The 1 Inga ne a' autres ai@ 'ing oar by-sa-id 'aid bear ig, apivot'f to and trigid withv th spindle, a ro yoke, and `llfiavir ts n 's'pecti've endsl of er roller ings ysupi orted between respeetive dipartsof'said car;

said pivot pin thel riers, ini'eansff ifise of #said p yoke 'to' take lup lodseness'l roll-having tippforting" fi; a Aroad; roiler,l a i r a'rrfd by Isad "frame,l

om ting @einen wat v members providedhwith alined openings, eart'he openings in said upright ing parts extending about the ers, mounted xrs an ha 'iresl'petsii/'e of( said pivot pin, anti-friction ,devices-interposed fbetween said ends of said pivot pin vand said carriers, means for adjusting said arriere axially with relation to said upright members, and auroll havingsupporting connection withisadvdke Y, l

65 In a ro'afd roller, a frame, 'uprightjbear# fsaid siirafrn'e,ja Spindle mounted in fsaajbaringfa tubular pivotpinitendmgjrafls: verselymtogand 'rigid with the iov/'er vportion `of said spindle, 'a rol-1 yoke, carriers mounted'fon an yfoke and invii-1g pa't'sji opposedjfe'lau'oii fp@ the 'lrsfpuvjeiidfs of Ssanpivot pin,- antr- S, JuSt-iris :saidfQTrS v g of 4pivc'it pin with lnelatior Atosaii yoke, Vabrolft extending said tubular 'pivot land 4through said carriers lto prevent/the 'lati ter from ieldl'g 'heavy "stresses, and va therewith, :e'ah'ohsaidl 'parts Having lan openling therethrough, ilie'ari-'Ilg supporting vmembers mounted Lin the espeet'iv upright*parts,feaeh ting', member having an rannu'l'a'"inv/far'diy' su por extend bearing 4 fon said frame.

l part `overhanging` said roll "and, provided with' pin and vrr'i'ounted on thel and supported thereon at the axis thereof, said yoke having front and rear upright parts rigid therewith, each of said parts having an opening therethrough, bearing supporting members mounted in the respective upright parts, each supporting member having an :annular inwardly extending flange and a radial iiange, shims between said radial ilanges and the respective upright parts, attaching devices to rigidly secure each radial flange to the adjacent upright part, a tubular pivot pin having end portions extending into the respective annular flanges, antifriction devices interposed between each annular flange on the adjacent end of said pivot pin, a tie bar extending through said pivot pin and secured to said bearing supporting members, and

a spindle rigidly connected with said pivot pin` and mounted in the bearing in said frame.

10. A device for supporting the frame of a road roller on a roll, comprising a yoke having means whereby it may be supported on said roll at the axis of the latter and including a transverse member, front and rear bearing supporting members separate from and detachably mounted on said transverse member of said yoke, alined bearings supported on said supporting members, a, pivot member having end portions mounted in the respective bearings, and a spindle rigid with said pivot member and adapted to be rotatably connected with said frame.

11. A device for supporting the frame of a road roller on a roll, comprising a yoke having means whereby it may be supported on said roll at the axis of the latter and including a transverse member, front and rear bearing supporting members mounted on said transverse member of said yoke, alined bearings supported on said supporting members, a pivot member having end portions mounted in the respective bearings, means for adjusting said supporting members lengthwise of said pivot member, and a spindle rigid with said pivot member and adapted to be rotatably connected with said frame.

12. A device for supporting the frame of a road roller on a roll, comprising a yoke having means whereby it may be supported on said roll at the axis of the latter and including a 'transverse member, upright members rigid with the iront and rear portions of the transverse member of said yoke and having openings therethrough, bearing carriers mounted in said upright members and adjustable toward and from each other, a pivot pin, bearings interposed between the ends of said pivot pin fand the respective bearing carriers, and an upright spindle rigidly connected with said pivot pin and adapted to be rotatably mounted in said frame.

CLAYTON E. GIFFORD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 229,994 Fowler July 13, 1880 1,376,286 Lingard Apr. 26, 1921 1,578,644 Collins Mar. 30, 1926 1,878,139 Hertner Sept. 20, 1932 

